Use a familiar way to specify compiler versions
diff --git a/examples/README.md b/examples/README.md
index 267c28f..ea59c02 100644
--- a/examples/README.md
+++ b/examples/README.md
@@ -6,7 +6,7 @@
### [`heapsize`](heapsize)
A complete working implementation of a custom derive. Works on any Rust compiler
->=1.15.0.
+1.15+.
### [`lazy-static`](lazy-static)
diff --git a/examples/heapsize/README.md b/examples/heapsize/README.md
index 1fe56ff..a99b727 100644
--- a/examples/heapsize/README.md
+++ b/examples/heapsize/README.md
@@ -1,5 +1,5 @@
A complete working implementation of a custom derive. Works on any Rust compiler
-\>=1.15.0.
+1.15+.
- [`heapsize/src/lib.rs`](heapsize/src/lib.rs)
- [`heapsize_derive/src/lib.rs`](heapsize_derive/src/lib.rs)